Title :
A fast, high-order integral equation solution for the scattering by inhomogeneous objects
Author :
Aiming Zhu ; Gedney, S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Kentucky Univ., Lexington, KY, USA
Abstract :
A fast solution for the electromagnetic scattering by inhomogeneous objects is presented. The method is based on a locally corrected Nystrom solution of the volume electric field integral equation. The matrix-vector multiplication is accelerated via the quadrature sampled precorrected FFT (QSPCFFT) (Gedney, S.D. et al., 2003). The QSPCFFT method preserves the high-order properties of the Nystrom solution, and has a complexity that scales as O(N log N) and memory that scales as O(N).
Keywords :
computational complexity; electric field integral equations; electromagnetic wave scattering; fast Fourier transforms; inhomogeneous media; matrix multiplication; sampling methods; EFIE; Nystrom solution; complexity; electromagnetic scattering; high-order integral equation solution; inhomogeneous objects; matrix-vector multiplication; quadrature sampled precorrected FFT; volume electric field integral equation; Acceleration; Dielectrics; Gaussian processes; Green´s function methods; Integral equations; Nonuniform electric fields; Permittivity; Polarization; Scattering; Surface impedance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1217388
